Cannot read property '_prefab' of null

Creator 2.x
#1

Cannot read property ‘_prefab’ of null
at Object.callback (D:\soft\CocosCreator\resources\app.asar\editor\page\scene-utils\edit-mode.js:1:2681)
at D:\soft\CocosCreator\resources\app.asar\node_modules\async\lib\async.js:906:35
at _arrayEach (D:\soft\CocosCreator\resources\app.asar\node_modules\async\lib\async.js:85:13)
at D:\soft\CocosCreator\resources\app.asar\node_modules\async\lib\async.js:898:17
at D:\soft\CocosCreator\resources\app.asar\node_modules\async\lib\async.js:44:16
at D:\soft\CocosCreator\resources\app.asar\editor\page\scene-utils\tasks.js:1:532
at D:\soft\CocosCreator\resources\app.asar\node_modules\async\lib\async.js:987:13
at Immediate.process (D:\soft\CocosCreator\resources\app.asar\node_modules\async\lib\async.js:953:21)
at runCallback (timers.js:574:20)

creator version: 1.5.1
即使场景中所有节点都还原为普通节点~~
我实在是无力吐槽了，一旦出现这个问题，场景连保存都保存不了，关了重建一个，刚弄好，又出现同样的问题~~~

#2

谢谢反馈，请问

  • 做了什么操作引起的 Bug：
  • 之前是否有哪个版本是没问题的：
  • 操作系统：
  • 编辑器之前是否有其它报错：
  • 出现概率：
  • 场景和 Prefab 中的节点数量：
#3

概率蛮高的，都碰到十次左右了，有时候就是拖动一个预制到场景里按保存就出现了，有时候又是在其他场景修改预制时，在保存时也可能会出现

#4

很抱歉我不太清楚问题产生的原因在哪。你确认所用的是 1.5.1 而不是 1.4.1 吗？你之前是否有哪个版本是没问题的？编辑器之前是否有其它报错？场景和 Prefab 中的节点数量多吗？

#5

你看下有类似这样的 log 吗，把这个展开看看那个 error stack

#6

刚看了下，有这个错误

Task [save-editor-mode:[scene]] run error, stop running other tasks.
TypeError: Cannot read property ‘_prefab’ of null
at doValidateSceneReference (/Developer/CocosCreator/CocosCreator.app/Contents/Resources/app.asar/editor/page/scene-utils/prefab-utils.js:1:2887)
at /Developer/CocosCreator/CocosCreator.app/Contents/Resources/app.asar/editor/page/scene-utils/prefab-utils.js:1:9295
at ObjectWalkerBehavior. (/Developer/CocosCreator/CocosCreator.app/Contents/Resources/app.asar/editor/share/engine-extends/object-walker.js:1:1023)
at ObjectWalkerBehavior.parseCCClass (/Developer/CocosCreator/CocosCreator.app/Contents/Resources/app.asar/editor/share/engine-extends/object-walker.js:1:2063)
at ObjectWalkerBehavior.parseObject (/Developer/CocosCreator/CocosCreator.app/Contents/Resources/app.asar/editor/share/engine-extends/object-walker.js:1:1875)
at doWalkProperties (/Developer/CocosCreator/CocosCreator.app/Contents/Resources/app.asar/editor/share/engine-extends/object-walker.js:1:724)
at ObjectWalker.iteratee (/Developer/CocosCreator/CocosCreator.app/Contents/Resources/app.asar/editor/share/engine-extends/object-walker.js:1:913)
at ObjectWalker.walk (/Developer/CocosCreator/CocosCreator.app/Contents/Resources/app.asar/editor/share/engine-extends/object-walker.js:1:2727)
at ObjectWalkerBehavior.forEach (/Developer/CocosCreator/CocosCreator.app/Contents/Resources/app.asar/editor/share/engine-extends/object-walker.js:1:2318)
at ObjectWalkerBehavior.parseObject (/Developer/CocosCreator/CocosCreator.app/Contents/Resources/app.asar/editor/share/engine-extends/object-walker.js:1:1707)
Cannot read property ‘_prefab’ of null

#7

场景不算多，就几个，预制大概二十来个吧~ 从creator的关于菜单看到的是1.5.1

#8

谢谢反馈，我大概知道是怎么回事了。（应该是场景中用某些特殊的方式关联到了一些已经删除的节点）
这个问题会在下个版本修复。